Kunena 3.0.0-RC1 release
Update language files
Add most of the languages to the build
Merge pull request #1722 from mahagr/master

Kunena 3.0.0-RC1 release
Fix onBefore/After save for categories
#1726 Language / J! version issue
Update language file headers
Merge pull request #1728 from mahagr/master

Fix onBefore/After save for categories, update language file headers
Merge pull request #1727 from xillibit/k30_bugs10

#1726 Language / J! version issue
Fix Transifex issue with \" in the translations
Prevent notice in user views when user doesn't have email address
Merge branch 'master' of github.com:Kunena/Kunena-2.0
If user profile failed to save, do not display wrong profile information to the user
Merge pull request #1729 from mahagr/master

Fix \" issue in languages and wrong information displayed after profile failed to save
Improve user save
Set status to "503 Service Temporarily Unavailable" when forum is offline
Remove some J!1.5 strings
Set version to RC2-DEV
Set status to "403 Forbidden" when forum can only be used by registered users
Fix #1720: Add configuration option to prevent access to /component/kunena